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42 Draft Designs O2 Sensor Spacer

SKU: EX-99-200

Availability: In stock made to order, ships in 3-5 days

42 Draft Designs

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When an aftermarket high-flow catalytic converter is used on a late model car its common to see a CEL (Check Engine Light) come and go. This CEL is usually backed by a fault code that indicates a failed cat. If your new cat is NEW, how could it have failed? Behind the scenes, the factory ECU is comparing the readings from a pair of oxygen sensors to measure the effectiveness of the cat. When a high-flow cat is used the exhaust gases are able to pass by the cat at a much faster rate, disrupting the readings.

Our o2 sensor spacer retracts the second oxygen sensor from the direct flow of gases, restoring the balance that the ECU requires when using a high-flow cat. Our O2 Sensor Spacer is CNC machined from cold roll steel & grade 8.8 metric hardware. After assembly, our spacer undergoes a zinc dichromate plating process which protects the spacer from corrosion. Installation is plug & play. Simply thread in our spacer, thread in the rear o2 sensor, and lock the spacer at the desired angle.

Strictly for use with a 49 state legal aftermarket high-flow catalytic converter such as the Magnaflow catalytic converter used exclusively in our exhaust systems. This product is not intended to and will not provide emissions compliance. Emissions laws vary by state. Check local and federal laws before modifying your exhaust system. Emissions compliance is the sole responsibility of the vehicles owner.


The length of the block is 2", then it is a 45 degree angle and the length from the block to start of threads is 2 1/8 inch

Additional Info

Additional Info

Weight 0.5000
Box Size N/A
Manufacturer 42 Draft Designs
Country of Manufacture United States
USA Location Millersville, MD
Warranty N/A
Installation Instructions (PDF) N/A
Rebates (PDF) No

Application Guide

Make Model Drivetrain Chassis / Year Engine
Universal All All All All


Customer Reviews (1)

HEAVY DUTY! GREAT QUALITY!!!! (Posted on 2/3/2018)

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